APA (7th ed.) Citation

Brown, C. M., & Robinson, G. P. (1977). Explanatory notes on the Lake Kutubu geological sheet. Office of Minerals and Energy.

Chicago Style (17th ed.) Citation

Brown, C. M., and G. P. Robinson. Explanatory Notes on the Lake Kutubu Geological Sheet. [Port Moresby]: Office of Minerals and Energy, 1977.

MLA (9th ed.) Citation

Brown, C. M., and G. P. Robinson. Explanatory Notes on the Lake Kutubu Geological Sheet. Office of Minerals and Energy, 1977.